Here's a small but significant development for your Tuesday morning: Karmin's "Acapella" -- the amazingly irritating lead single from this electro-pop duo's upcoming album -- has somehow gotten worse.

Epic has just released the audio of Karmin's second official single, the sunny pop track "Broken Hearted," which features another dose of Amy's trademark rapping over a Dr. Luke-esque beat.

But those critics seem out of touch with Karmin’s fanbase on YouTube, where the pair has attracted more than 800,000 subscribers and 192 million video views across two channels.

Over the past year, former internet stars Karmin ditched their viral YouTube covers and embraced their songwriting chops. On “I’m Just Sayin’,” the duo channel their quirky hip-pop style ...

“All the harmony went fallin’ out of key,” Karmin lament in “Acapella,” the duo’s new ode to independence born from disappointment. For the lead single off Karmin’s as-yet-untitled ...

Karmin Song Premiere: Hear ‘Didn’t Know You’ From Forthcoming Album. Amy Heidemann and Nick Noonan, the plucky couple that forms Karmin, is back with their first musical project since ...

Watch Boston duo Karmin’s amazing cover of Chris Brown’s ‘Look at Me Now’ Lil Wayne loses his brain, head, and sleep in ‘6’7′ video: Watch here Close this dialog window ...

YouTube sensation Karmin was brought onstage by none other than the Roots for a Tufts University show last weekend -- and of course, the duo captured the surreal experience for their Internet fans.

Judging from their long delayed full-length debut, Karmin can’t quite decide whether they want to fully embrace pop with extra cheese or comment on the genre ironically. Vocalist/MC Amy ...